Rename diamond_border.py to 7diamond_border.py

Author: sakshikore16

diamond_border.py 7diamond_border.pydiamond_border.py renamed to 7diamond_border.py

@@ -21,4 +21,4 @@
             print ("*", end = " ")
         else:
             print (" ", end = " ")
-    print()
+    print()